一、以“疑”激思“疑”是创新的基础。任何“思”都是从“疑”开始的,并靠“疑”来推动“思”。因此,在教学中创设一种开放的富有意义的问题情境,让学生主动提出问题,激发探究问题的意识,产生认识冲突,并促进学生积极思考和主动参与是十分必要的。只有在参与中,才会有创新,才会激起学生创新思维的浪花。如在学习“凸透镜”一课时,我让学生观察各类镜子,在观察过程中找出凸透镜与其他镜子的不同点,从而使学生形成对凸透镜的直观表象,在此基础上,我 First, to “doubt ” Inspiration “doubt ” is the basis of innovation. Any “thinking” begins with “doubt ” and pushes “thinking ” by “doubting ”. Therefore, it is necessary to create an open and meaningful problem situation in teaching, so that students can take the initiative to ask questions, stimulate the awareness of exploring problems, generate awareness conflicts, and promote positive thinking and active participation of students. Only in the participation, will there be innovation, will inspire students a wave of innovative thinking. For example, when I was studying “Convex Lens ”, I let students observe all kinds of mirrors and find out the difference between convex lenses and other mirrors during the observation so as to make students form an intuitive appearance on convex lenses. Based on this, I